Oxophilic Sites Mediated Dynamic Oxygen Replenishment to Stabilize Lattice Oxygen Catalysis in Acidic Water Oxidation
Nanjing University of Aeronautics and Astronautics · National Yang Ming Chiao Tung University · +5 more institutions
Abstract
Developing efficient and durable catalysts for the oxygen evolution reaction (OER) in acidic media is essential for advancing proton exchange membrane water electrolysis (PEMWE). However, catalyst instability caused by lattice oxygen (OL) depletion and metal dissolution remains a critical barrier. Here, we propose an oxophilic-site-mediated dynamic oxygen replenishment mechanism (DORM), in which OL actively participates in O–O bond formation and is continuously refilled by water-derived species. Oxophilic dopants modulate the local electronic structure, lower the energy barrier for oxygen vacancy healing, and reorganize the interfacial hydrogen-bond network to enhance water mobility, orientation, and proton…
Citation impact
- FWCI
- 12.30
- Percentile
- 100%
- References
- 48
Authors
14- SLShaoxiong Li
Nanjing University of Aeronautics and Astronautics
- SZSheng Zhao
Nanjing University of Aeronautics and Astronautics
- SHSung‐Fu Hung
National Yang Ming Chiao Tung University
- LDLiming Deng
Nanjing University of Aeronautics and Astronautics
- LWLuqi Wang
Nanjing University of Aeronautics and Astronautics
Topics & keywords
- Catalysis
- Overpotential
- Oxygen evolution
- Electrolysis of water
- Oxygen
- Dissolution
- Electrolyte
- Redox